LAURENCE KATZNELSON
Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism LOS ANGELES, CA NPI 1013082643
Browse related groups: Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CA Corcept Therapeutics All categories
General Payments — all program years on this page
$98,309.69
- Category: General Payments
- Program years: PY2018–2024
- Record count: 56
- As of (CMS publication): 2026-01-23
Latest program year (PY2024): $29,300.70 across 4 records · disputed records: 0
Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.
How this figure is calculated
- The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. Nothing is estimated, weighted, or combined across categories.
- General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
- Featured-page threshold (a presentation gate, not a judgment): records>=3 OR total>=100 (all years).
- Methodology & Data — sourcing, labeling, and limitations.
By nature of payment
Latest program year (PY2024) · sorted by reported total.
| Nature of payment | Amount | Records |
|---|---|---|
| Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | $22,500.00 | 1 |
| Consulting Fee | $6,461.70 | 2 |
| Travel and Lodging | $339.00 | 1 |
By paying entity
Latest program year (PY2024) · sorted by reported total.
| Paying entity | Amount | Records |
|---|---|---|
| Corcept Therapeutics | $26,161.70 | 2 |
| Alexion Pharmaceuticals, Inc. | $3,139.00 | 2 |
By program year
Records — PY2024 (4)
| Record ID | Paying entity | Amount | Date | Nature of payment | Dispute status | Published | Source |
|---|---|---|---|---|---|---|---|
| 1093885565 | Alexion Pharmaceuticals, Inc. | $339.00 | 07/16/2024 | Travel and Lodging | Undisputed | 01/23/2026 | View at CMS |
| 1093930782 | Alexion Pharmaceuticals, Inc. | $2,800.00 | 07/16/2024 | Consulting Fee | Undisputed | 01/23/2026 | View at CMS |
| 1117727814 | Corcept Therapeutics | $3,661.70 | 03/27/2024 | Consulting Fee | Undisputed | 01/23/2026 | View at CMS |
| 1117727978 | Corcept Therapeutics | $22,500.00 | 10/01/2024 | Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | Undisputed | 01/23/2026 | View at CMS |
Provenance & corrections
- Dataset: CMS Open Payments — General Payments
- Source: CMS Open Payments dataset (bulk file)
- Publisher of source data: Centers for Medicare & Medicaid Services
- Generated from: OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv
One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.
Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.